I got my hands on an old 1975 Kawi KM100 today and everything is great, with the exception that it is missing the muffler section of the exhaust system. I have a pic that I will attach that kinda shows what I mean. If you look there is nothing going from the large exhaust chamber past the wheel, which is the section I need. if anyone knows where I could get one, PLEASE TELL ME! And thanks guys!